System and Method for a Quiet Mouse Scroll Wheel with Magnetic Haptic Encoder

1. A mouse operatively couplable to an information handling system comprising: a mouse microcontroller; a mouse power management unit (PMU) to power the mouse microcontroller; a scroll wheel to receive rotational input from a user; a magnetic haptic encoder operatively coupled to the scroll wheel to detect an angular rotation of the scroll wheel via an angular motion encoding sensor to convert changes in the angular position of the scroll wheel due to rotation into a scrolling input signal to the mouse microcontroller; the magnetic haptic encoder comprising: a grooved ferromagnetic wheel having alternating wheel raised portions and wheel grooved portions operatively coupled to the scroll wheel; an angular motion encoding sensor in a housing of the magnetic haptic encoder to encode rotation of a scroll wheel shaft; and a magnet operatively coupled to the housing of the magnetic haptic encoder adjacent to a face of the grooved ferromagnetic wheel such that the face of the grooved ferromagnetic wheel rotates adjacent to the magnet in the housing along an outer edge of the grooved ferromagnetic wheel, wherein magnetic coupling of the magnet with the alternating wheel raised portions and wheel grooved portions of the grooved ferromagnetic wheel generates haptic feedback to the user when the user rotates the scroll wheel.

2. The mouse of claim 1 further comprising: the grooved ferromagnetic wheel including the alternating wheel grooved portions and wheel raised portions located at an outer circumference of the grooved ferromagnetic wheel to create alternating levels of magnetic attraction between the rotating grooved ferromagnetic wheel and the magnet to create the haptic feedback.

3. The mouse of claim 1 further comprising: a magnet sleeve to operatively couple the magnet to the housing of the haptic encoder.

4. The mouse of claim 1 further comprising: the magnetic haptic encoder operatively coupled to the mouse microcontroller to receive the scrolling input signals based on rotation of the scroll wheel and transmit the scrolling input signals to the information handling system.

5. The mouse of claim 1, wherein the grooved ferromagnetic wheel is formed of a silicone steel.

6. The mouse of claim 1 further comprising: an encoder shaft operatively coupling the scroll wheel to the grooved ferromagnetic wheel of the magnetic haptic encoder.

7. The mouse of claim 1, wherein the magnet is a permanent magnet.

8. A method of manufacturing a mouse comprising: coupling a scroll wheel into a base chassis of the mouse via a cradle; forming a grooved ferromagnetic wheel having alternating wheel raised portions and wheel grooved portions operatively coupled via a shaft with the scroll wheel; forming a magnetic haptic encoder comprising an angular motion encoding sensor in a housing of the magnetic haptic encoder to encode rotation of the scroll wheel and the grooved ferromagnetic wheel and a magnet mounted in the magnetic haptic encoder adjacent to a face of the grooved ferromagnetic wheel such that the face of the grooved ferromagnetic wheel rotates adjacent to the magnet in the housing, where the magnet magnetically interacts with an outer edge of the grooved ferromagnetic wheel as it rotates to generate a haptic feedback in the scroll wheel; operatively coupling the magnetic haptic encoder into the base chassis of the mouse; operatively coupling the scroll wheel to the magnetic haptic encoder such that the grooved ferromagnetic wheel rotates with the scroll wheel rotation; operatively coupling the magnetic haptic encoder to a mouse microcontroller; and operatively coupling a top housing of the mouse to the base chassis of the mouse to enclose the mouse.

9. The method of claim 8 further comprising: operatively coupling the magnet to the magnetic haptic encoder via a magnetic sleeve to hold the magnet relative to the grooved ferromagnetic wheel.

10. The method of claim 8 further comprising: forming the grooved ferromagnetic wheel by forming alternating wheel grooved portions and wheel raised portions, such that the magnet interacts at alternating levels of magnetic attraction with the grooved ferromagnetic wheel during rotation adjacent to the magnet to generate the haptic feedback when the scroll wheel is rotated by a user.

11. The method of claim 8 further comprising: operatively coupling a wireless mouse radio to the mouse microcontroller to wirelessly transmit scrolling input data from the angular motion encoding sensor of the haptic magnetic encoder to an information handling system.

12. The method of claim 8, wherein the grooved ferromagnetic wheel comprises a silicone steel.

13. The method of claim 8, wherein the magnet includes an electromagnet operatively coupled to the PMU to selectively activate the electromagnet during operation of the magnetic haptic encoder.

14. A mouse for use with an information handling system comprising: a base chassis of the mouse to enclose a mouse microcontroller and a mouse power management unit (PMU) to power the mouse microcontroller; a scroll wheel to receive scrolling input from a user by rotating the scroll wheel; the scroll wheel operatively coupled to a magnetic haptic encoder to detect a scrolling input signal from rotation of the scroll wheel; the magnetic haptic encoder comprising: a grooved ferromagnetic wheel, the grooved ferromagnetic wheel comprising alternating wheel grooved portions and wheel raised portions; an angular motion encoding sensor in a housing of the magnetic haptic encoder to encode rotation of the scroll wheel; and a magnet operatively coupled to the housing of the magnetic haptic encoder adjacent to a face of the grooved ferromagnetic wheel such that rotation of the grooved ferromagnetic wheel rotates adjacent to the face of the alternating wheel grooved portions and wheel raised portions and magnet fluctuating magnetic attraction between the magnet and the rotating grooved ferromagnetic wheel to generate haptic feedback at the scroll wheel to the user; and a top housing operatively coupled to the base chassis of the mouse to enclose the mouse.

15. The mouse of claim 14, wherein the alternating wheel grooved portions and wheel raised portions create alternating levels of magnetic attraction with the magnet due to the wheel raised portions passing through a magnetic field of the magnet closer than the grooved portions of the grooved ferromagnetic wheel to magnetically generate the haptic feedback.

16. The mouse of claim 14 further comprising: a magnet sleeve to hold the magnet, wherein the magnet within the magnet sleeve is held on a housing of the magnetic haptic encoder adjacent to the alternating wheel grooved portions and wheel raised portions of the rotating grooved ferromagnetic wheel.

17. The mouse of claim 14 further comprising: the magnetic haptic encoder operatively coupled to the mouse microcontroller to receive the scrolling input signals indicative of the changes in an angular position of the scroll wheel and transmit those scrolling input signals to the information handling system.

18. The mouse of claim 14 further comprising: an encoder shaft operatively coupling the scroll wheel to the grooved ferromagnetic wheel of the magnetic haptic encoder, where the encoder shaft rotates the ferromagnetic wheel when the scroll wheel is rotated.

19. The mouse of claim 14 further comprising: the magnet includes a permanent magnet.

20. The mouse of claim 14 wherein the grooved ferromagnetic wheel comprises a silicone steel.